Subwoofer PCB, large

Epoxy glass fibre laminate PCB 220 x 120 mm with 35 um Cu layer, tin plated.
In the picture to the left are the connections to the amplifier, to right the
connection to the subwoofer and satellites. For connection to
- a subwoofer (1.4 mm coil, capacitor, resistor) and
- a satellite speaker (max. 3 capacitors, 4 resistors, 1 coil)